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Kevin, Technician
Category: Audi
Satisfied Customers: 1954
Experience:  Diagnostic technician vw/ audi specialist
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Audi Q7 Premium: Fueled up full yesterday and when I went to

Customer Question

Fueled up full yesterday and when I went to start it later that evening. I get misfire and it continues to idle rough but once driving it's fine....Bad gas????
Did a scan and got p0300 only
Submitted: 2 years ago.
Category: Audi
Expert:  Kevin replied 2 years ago.
Hi I'm Kevin. It seems likely the most likely cause but could be coincidence I would run car until u have used all of that tank of fuel and see if running improves .the code is random misfire so it's likely misfiring on most cylinders this also fits with bad fuel

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